Re: [PATCH 3/5] sched: Enable PREEMPT_DYNAMIC for PREEMPT_RT

[Christoph Hellwig]

On Mon, Oct 07, 2024 at 09:46:12AM +0200, Peter Zijlstra wrote:
> In order to enable PREEMPT_DYNAMIC for PREEMPT_RT, remove PREEMPT_RT
> from the 'Preemption Model' choice. Strictly speaking PREEMPT_RT is
> not a change in how preemption works, but rather it makes a ton more
> code preemptible.
> 
> Notably, take away NONE and VOLATILE options for PREEMPT_RT, they make
> no sense (but are techincally possible).

Should we take away NONE entirely because it is kinda silly?

Just a bystander here, but the explosion of different preemption models
is a bit silly and not really helpful to users.